Spearhead LRS 2001 User manual

LRS 2001 &2401
QUADSAW & HXF3300
TELEHANDLER FRAME
Edition 1.1–2012

LRS QUADSAW & HXF FRAME
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LRS 2001 & 2401 QUADSAW &
HXF3300 TELEHANDLER FRAME
Handbook & Parts Book
IMPORTANT NOTE
The information contained in this manual is correct at the time of publication.
However, in the course of constant development, changes in specification are
inevitable. Should you find the information given in this book different to the
machine it relates to please contact the “After Sales Department” for advice
© Spearhead Machinery Limited
Please ensure that this manual is handed to the operator before using the
machine for the first time. The operator must fully understand the contents of
this manual before using this machine.
(If the machine is resold the Manual must be given to the new owner.)
Spearhead Machinery
Green View,
Salford Priors,
Evesham,
Worcestershire,
WR11 8SW
Tel: [phone] Fax: [phone]
www.spearheadmachinery.com
[email protected]

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CE Declaration of Conformity,
Conforming to EU Machinery Directive 2006/42/EC
We, Spearhead Machinery Ltd, Green View, Salford Priors, Evesham,
Worcestershire, WR11 8SW hereby declare that:
Product ……………………………………………..…………………………
Product Code……………………………………………..…………………………
Serial No……………………………………………..……..………………….
Type……………………………………………..…………………………
Manufactured by: Alamo Manufacturing Services (UK) Limited, Station Road, Salford
Priors, Evesham, Worcestershire, WR11 8SW
Complies with the required provisions of the Machinery Directive 2006/42/EC. The
Machinery Directive is supported by the following harmonized standards:
BS EN ISO 14121-1 (2007) Safety of Machinery –Risk Assessment, Part 1:
Principles Part 2: Practical Guide and Examples of Methods.
BS EN ISO 12100-1 (2010) Safety of Machinery –Part 1: Basic Terminology
and Methodology Part 2: Technical Principles.
BS EN 349 (1993) + A1 (2008) Safety of Machinery –Minimum Distances to
avoid the Entrapment of Human Body Parts.
BS EN 953 (1998) Safety of Machinery –Guards General Requirements for the
Design and Construction of Fixed and Movable Guards.
BS EN 982 (1996) + A1 (2008) Safety Requirements for Fluid Power Systems
and their Components. Hydraulics.
The EC Declaration only applies if the machine stated above is used in accordance
with the operating instructions.
Signed
(On behalf of Spearhead Machinery Ltd)
Status General Manager
Date ………………………………………………

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CONTENTS
Handbook Section 5
Mounting the Quadsaw 5
Operation & Introduction 6
Driving Recommendations 6
Maintenance 7
Belts 7
Technical Data & Description of Working Tool 9
Safety 10
HXF 3300 Mounting Frame 11
Attaching the Frame 11
Transport and Work Positions 12
Hydraulic Diagrams 13
HXF 3300 Controls (Optional Extra) 14
Diverter Valve Kit (Optional Extra) 15
HXF 3300 Maintenance 16
Troubleshooting Guide 18
Parts Section 19
Mainframe 1 19
Mainframe 2 20
Blade Shaft 21
Adjusting System 22
Piston Motor 23
Decals 24
HXF 3300 Telehandler Frame 25
HXF 3300 Telehandler Frame Valve Assembly 26
Warnings & Directions 27

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MOUNTING THE QUADSAW
The blades MUST be mounted in a downward cut rotation in relation to the tractors
driving direction.
The blade carrier centre bolt (M10) should be tightened to 25Nm and the (M8) outer
bolts tightened to 40Nm.
Mount the Quadsaw so the blades are running in the driving direction.
Install and connect the hydraulic hoses so the blades are running in the correct direction.
The separate drainage hose must be led directly back to the oil reservoir.
Check all connections for any oil leaks.
The first time the machine is used the blade speed should be measured and adjusted to
achieve the optimum working speeds of:
LRS 2001 (3000 -3200 RPM)
LRS 2401 (2700 -2800 RPM)
Holding this speed is important for the best optimum performance.

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OPERATION & INTRODUCTION
The Spearhead Quadsaw encompasses a range of hydraulic arm mounted 4 blade saw units
used for cutting branches and small trees.
The LRS 2001 is fitted with four 500mm saw blades with a cutting capacity of up to 120mm
diameter. Branches thicker than 80mm should be cut one at a time.
The LRS 2401 is fitted with four 600mm saw blades with a cutting capacity of up to 160mm.
Branches thicker than 120mm should be cut one at a time.
Best performance is achieved by cutting in an upright or vertical cutting position and angled
at no more than 45 degrees from this position.
Horizontal cutting is possible on hedges with a width up to 1.2m and a branch diameter up
to 40mm, thicker branches might stall the blades and or cause the blades to get stuck.
DRIVING RECOMMENDATIONS
It is recommended to travel at a slow forward speed when starting work in order to retain
the recommended rpm of the blades. The angle of the saw should be adjusted to
approximately 90 degrees in relation to the branches. If a thick branch is approaching the
branch reflectors, the working position must be adjusted for the branch to hit the saw
blades straight on.
If small branches or other unwanted material gets stuck in the blades, the machine and
tractor must be stopped and the debris cleared.
Always try to keep the blades running vertical in relation to the direction of travel, this will
prevent the blades from flexing too much during operation.
An optional skid can be mounted at the bottom of the Quadsaw to prevent the saw blades
from hitting the ground.

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MAINTENANCE
Initial Maintenance
After an initial 2 hours work all taper-locks must be retightened to 31Nm.
After 10 hours work all bolts, screws and taper-lock bushes must be retightened. If the
bushes loosen at a later time they may be secured with ‘Loctite’ or equivalent.
Regular Maintenance
All bolts must be retightened on a regular basis.
The plastic strips are adjusted down to 1mm clearance from the blades. The plastic
strips must be replaced if the clearance distance exceeds 5mm.
The branch deflectors must be adjusted as close as possible to the blades without
touching.
Dismount the belt guard to clean the housing.
Inspect and if necessary adjust the belts (see belt diagram here or under belt guard).
After inspection or service ALL protection plates and guards must be replaced before
using the machine.
BELTS
It is important that belts are kept in good condition and are correctly tensioned at all times.
The correct tensions are as follows:
LRS 2001: Short Belt 550 Nm and Long Belts 650 Nm
LRS 2401: Short Belt 900 Nm and Long Belts 1100 Nm

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Tensioning the Belts
CAUTION! Care must be adopted when servicing this part of the machine as there
is risk of trapping hands or fingers in the belts, pulleys and blades.
WARNING: Ensure cover is replaced and all bolts are re-tightened before using the
machine.

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TECHNICAL DATA & DESCRIPTION OF WORKING TOOL
Quadsaw for mounting on hydraulic hedgecutters or specified HXF3300 Telehandler
Frame.
Model
LRS 2001
LRS2401
Working Width
2000mm
2380mm
Blade Speed
3000 –3200 RPM
2700 –2800 RPM
Blade Diameter
500mm
600mm
Teeth per Blade
72 Teeth
78 Teeth
Material
Hardened Steel with Special Teeth
HM Precision Blade
Hardened Steel with Special
Teeth HM Precision Blade
Performance
1-120mm Branch Diameter
1-160mm Branch Diameter
Application
Vertical
Vertical
Oil Flow 15.0 CC
50 Litres
Relief Valve 170 Bar
45 Litres
Relief Valve 170 Bar
Oil Flow 28.0 CC
85 Litres
Relief Valve 140 Bar
80 Litres
Relief Valve 140 Bar

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SAFETY
Never operate the machine with other people present as it is possible for debris to be
thrown from the saw blades in all directions.
Always ensure all cab safety guards are in place and all tractor windows are closed.
Never allow an inexperienced person to operate the machine without supervision.
Never allow children to play near or around the machine at any time.
Never attempt any maintenance or adjustment without first disengaging the
PTO/hydraulic pump, lowering the head to the ground, stopping the tractor engine and
applying the tractor parking brake.
Before leaving the cab remove the ignition key.
Never stop the engine with the PTO engaged.
Before leaving the tractor cab always ensure that the saw head is firmly on the ground,
no weight is on the tractors hydraulics and blades have stopped spinning.
Never transport with the PTO engaged.
Always check that all guards are properly fitted, check there are no damaged or loose
parts.
Always operate the blades at a speed between 2700-3200 RPM (depending on the
model).
Maximum oil pressure of 250 bar in the hydraulic hoses.
Never transport without the blade protection guards mounted.
Always inspect work area for wire, steel posts, large stones and other dangerous
materials. If such items are found remove them.
Never attempt to use the machine for any other purpose other than what it was
designed for.
Ensure all warning labels are always visible and that they are not damaged, defaced or
missing.

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HXF3300 MOUNTING FRAME
The HXF3300 is a mounting frame specifically designed for attaching the Spearhead LRS 2001
or LRS 2401 Quadsaw models to Telehandlers. The HXF3300 features a reach of
approximately 2.5 metres, 180° manual folding system, and hydraulic collision safety. The
overall weight of the unit, without tools, is 225kg.
ATTACHING THE FRAME
1) Drive up to the machine, tilt
attachment bracket into the
horizontal position.
2) Locate attachment bar into hooks
and secure latches.
3) Tilt bracket backwards 90°.
4) Detach supporting legs.
DANGER
Keep well clear of all
overhead power lines
when manoeuvring or
operating this machine.

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TRANSPORT & WORK POSITIONS
Transport Position Work Position
The procedure for moving the machine from transport position to work position is as
follows;
A) Remove transport pin.
B) Manually fold the arm out by 180° into the work position.
C) Fit and secure the ram pin.
Storage Position
B
A
C

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HYDRAULIC DIAGRAMS

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HXF3300 CONTROLS (OPTIONAL EXTRA)
An optional electrical control unit is available for controlling the main functions of the
HXF3300 and LRS Quadsaw.
Operator Controls
1) On/Off Switch.
2) Cutting Angle Switch.
3) Tool On/Off Switch.
4) Control Unit Fuse (8 Amp).
Cutting Angle Adjustment
The cutting angle is adjusted hydraulically by operation of the rocker switch (2); operate the
switch in the required direction to set the desired cutting angle before starting work.
The angle switch may be operated during work to make minor angling adjustments, but it is
recommended to halt work before making major adjustments to the cutting angle.
Valve Unit (Part of Optional Electrical Control Unit)
1) Flow Adjustment.
2) Manual Override.
3) Pressure Relief Valve (200 bar).
A) Flow for Tool (regulated).
B) N/A
C) Cutting Angle
D) Cutting Angle
P) Pressure (flow from pump).
T) Tank Connection
(pressureless + T from motor).

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Electrical Diagram
DIVERTER VALVE KIT (OPTIONAL EXTRA)
P) Pressure from pump (Max. 150L/min).
R) Regulated oil flow (Max. 90L/min).
T1) Return from motor.
T) Tank connection.
M) Manometer test plug.
P / R / T1 / T = ¾” Thread
M = ¼” Thread

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HXF3300 MAINTENANCE
Lubrication
Grease the lubrication points on machine on the following basis;
Daily prior to use.
Always prior to storage.
Always after it has been washed.
NOTE: Never use grease that contains Molybdenum Disulfide on nylon bushes.
Hydraulic Hoses
Inspect hydraulic hoses and fittings on a daily basis prior to using the machine; ensure they
are free from damage or leaks and that the hoses are not rubbing on machine components.
Any damaged hoses or fittings should be repaired or replaced immediately.
Run new hoses alongside the old ones prior to removal to ensure the correct routing is
retained. When replacing a hose avoid twisting it, use 2 spanners to tighten it.
Ensure hoses bend with machine movements and that they do not twist or strain.
All hose connections are of a ‘soft seal’ type and should only be turned a further 1/2 turn
more than hand tight in order to be leak-proof (see table below).
BSP
(size)
Nm
¼”
24 Nm
18 lbs/ft
⅜”
33 Nm
24 lbs/ft
½”
44 Nm
35 lbs/ft
¾”
84 Nm
62 lbs/ft
1”
115 Nm
85 lbs/ft
Machine Oil Supply
Check oil level in the tank each day prior to starting work - it is good practice to constantly
keep an eye on the sight glass level as a ruptured pipeline can empty a system within
minutes; a pump or motor that runs out of oil will be damaged beyond repair very quickly.
The oil must be changed if there are signs that it is contaminated (discolored).
Ensure cleanliness when replacing or topping up the oil by;
Carefully cleaning around the filler neck prior to opening.
Always using clean containers for refilling the system.
Regular inspection of the filtration system.
Never letting the oil level fall below the level in the sight glass.

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Check daily that all hydraulic connections and fittings are in good condition. Any defect or
leak must be immediately repaired, it is part of the daily maintenance that will reduce costs
and prolong machine life.
If fittings require retightening always use 2 spanners and avoid over tightening. If the fitting
continues to leak, replace it.
Regular Maintenance Tasks
After every 4 hours of use the following maintenance task should be observed;
Check bolts for tightness and –retighten if required.
Check valve block, hoses and fittings for signs of leaks –retighten or replace seals if
required.
Bolts and bushes should be greased and retightened.
Bolts and Bushes
All major pivot points are equipped with replaceable bushings, if they show signs of wear,
replace them. NOTE: Never use grease that contains Molybdenum Disulfide on nylon
bushes.
Machine Storage
Before the machine is placed into storage, it should be thoroughly washed. Remove all
traces of grass, leaves and dirt.
Take care if using high pressure jet hoses or steam cleaners as these can quickly damage
paintwork and decals. Remove all cleaning products thoroughly to avoid them from staining
or damaging the paint.
Grease lubrication points until fresh grease comes out.
Where applicable, drive belts should be loosened to remove tension and ‘relax’ the belts.
Ideally, the machine should be stored in a clean dry environment where it is protected from
the elements; if the machine has to be stored outside it is advisable to keep it covered over
to protect it from rain and sunlight. Control units should be stored clear of the ground and
protected from the damp. It is recommended that canvas tarpaulin or similar coverings are
used to cover the machine rather than plastic sheeting which would harbor condensation
and promote rapid corrosion.

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TROUBLESHOOTING GUIDE
Problem
Possible Cause
Solution
Valve or motor leak.
Oil pressure too high.
Hose incorrectly fitted or
loose.
Check pressure.
Replace gasket.
Refit and tighten correctly.
Overheating.
Tool speed incorrect.
Incorrect oil level.
Wrong oil type.
Blades clogged.
Air temperature too high.
Check PTO speed.
Check oil level.
Empty tank and fill with
correct oil.
Stop machine and clear blades.
Reduce operating speed/install
fan.
Electrical failure.
Wrong supply from tractor.
Contacts exposed to water.
Check fuse and supply from
tractor.
Always store protected from
water.
Hydraulic failure.
Oil level too low.
Pressure hose kinked.
Oil leak in pressure hose.
Oil pump suction filter
blocked.
Top up oil to correct level.
Check pump rotates / check
hoses.
Check machine for leaks.
Replace filter element.
Irregular arm movements.
Broken spring in the PVG
valve.
Defective ram seals.
Check spring –replace if
required.
Check seals –replace if
required.
Electric valve not
responding.
Faulty wiring.
Dirt in valve.
Valve stuck.
Insufficient voltage.
Check wiring and switches.
Check and clean valve.
Replace valve.
Check for bad connection.

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PARTS SECTION
MAIN FRAME 1
Pos
LRS 2001
LRS 2401
Description
Number
1
200101.0
Mounting arm with splines
1
1
200101.1
240201.0
Mounting arm from 2005 onwards
1
10 + 40
Bolt
4
16 + 40
Bolt
1
2
240147.0
240147.0
Welding kit for arm
1
3
200170.H
240170H
Skid EU model
1
3
200170V
240170V
Skid for left use/GB model
1
4
200112.0
240112.0
Branch carried fits on L & R hand machines
3
5
200141.0
240141.0
Belt/Short
1
6
200140.0
340140.0
Belt/Long
2
7
200142.0
200142.0
Rubber protection
1

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MAIN FRAME 2
Pos
LRS 2001
LRS 2401
Description
Number
1
200111.1
240111.0
BLADE
4
2
200110.0
200110.0
PLASTIC STRIP
1
3
240168.0
WEAR PLATE - LONG
4
4
200157.0
200157.0
WEAR PLATE –SHORT –JUNE 2007
4
4
200153.0
200153.0
WEAR PLATE –SHORT - JULY 2007
4
5
200162.0
200162.0
TRAFFIC PROTECTION
1